Induction Motor

Induction MotorAn induction motor is an alternating current-based electric motor, where the rotor's rotation frequency does not equal to the rotation frequency of the magnetic field generated by the stator's winding. The induction motor is in fact the most common type of electric motors. The induction motor has a stator and a rotor divided by air space. Its active elements are the winding and the magnetic core; the rest of the parts are structural designed to ensure the required hardness, rigidity, cooling and rotation capability. The motors used in household appliances are usually built with the help of a phase rotor and stator. But there also exist motors with a square-cage rotor, where the current at launch exceeds the rated current by 4-7 times. That's why only motors of 200 kWt and below can be directly connected to power supply.Today we will briefly cover some of such induction motors found in household appliances.A capacitor motor is an induction motor built to run on single-phase power. Its stator has two windings, one of which is connected directly to power supply, and the other - in series with an electric capacitor to generate a rotating magnetic field.Motors with starting elements are another type of induction motors. Here, the starting elements are represented by an increased resistance starting winding and a starting capacitor. Motors with increased resistance starting winding are simple in their construction and rather cheap. They come without an additional ...



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